Praised by critics as "a soloist who acquitted herself admirably in her performance" and for her "very high standard of playing," Sonia Lee has appeared as soloist, duo-keyboardist, chamber musician, and guest conductor in North America, Europe and the Far East. As a guest artist, she has been heard at festivals and conferences, including Early Music Colorado Fall Festival, Rome Festival, Boston Early Music Festival, Society for Historically Informed Performance Summer Concert Series, and the American Musical Instrument Society, Midwestern Historical Keyboard Society, and Southeastern Historical Keyboard Society meetings. As a continuo player, she has played with numerous ensembles, including Concerto Urbano, La Donna Musicale, the Rome Festival Orchestra and Opera, Dulces Exuviae, the Phantasie String Orchestra, Sinfonia da Camera, the Champaign-Urbana Symphony Orchestra, the Baroque Artists of Champaign-Urbana, Les Jeunes Virtuoses de Montreal, and Musicerend Gezelschap, of which she is a founding member.

Lee's performances have been broadcast on WILL-FM, Harmonia/WFIU, and RTHK, and her CD recording with La Donna Musicale features the "Seven Psalms of David" by Antonio Bembo and instrumental works by Elisabeth Jacquet de la Guerre. With a strong interest in compositions for two harpsichords, she is currently preparing editions of newly discovered two-harpsichord works by two eighteenth-century German composers, Peter August and Georg Christoph Wagenseil, and has delivered modern premiere performances of their works. Her recent projects have included the world premiere of "Evolutions" (2007) for harpsichord by Belgian composer Dagmar Feyen in North Carolina, a lecture-recital on Dieterich Buxtehude's copy of two harpsichord suites by Nicolas Lebegue at the Midwestern Historical Keyboard Society meeting, and several biographical articles on such prominent musicians as Wanda Landowska, Nikolaus Harnoncourt, August Wenzinger, and Jean-Pierre Rampal for the forthcoming encyclopedia, "Musicians and Composers of the 20th Century," to be published by Salem Press in 2009.

Lee has won numerous prizes and grants, including first prize in the 2007 Montreal Baroque Galaxie-CBC Rising Star Competition, Jurow Prize in the 2007 Mae & Irving Jurow International Harpsichord Competition, third prize in the 2000 Canadian Music Competitions, and the 2006 William E. Gribbon Memorial Award sponsored by the American Musical Instrument Society. She holds degrees in Early Music from McGill University in Montreal (Canada), and is a Fellow of Trinity College, London (UK). Her major teachers have included Charlotte Mattax, Hank Knox, Luc Beausejour, Joyce Lindorff and Sr. Lucile Gagne and she has received additional coaching from Kenneth Gilbert. She is a former holder of the Creative and Performing Arts Fellowship at the University of Illinois at Urbana-Champaign, where she has taught harpsichord and music history, as well as directed the Collegium Musicum. Her DMA dissertation is entitled "The Harpsichord: A Research and Information Guide."